EP2555910A1 - Spritzgussverfahren zur modifizierung einer oberfläche eines apolaren polymerformkörpers sowie für dieses verfahren geeignete mehrschichtfolie - Google Patents
Spritzgussverfahren zur modifizierung einer oberfläche eines apolaren polymerformkörpers sowie für dieses verfahren geeignete mehrschichtfolieInfo
- Publication number
- EP2555910A1 EP2555910A1 EP11711939A EP11711939A EP2555910A1 EP 2555910 A1 EP2555910 A1 EP 2555910A1 EP 11711939 A EP11711939 A EP 11711939A EP 11711939 A EP11711939 A EP 11711939A EP 2555910 A1 EP2555910 A1 EP 2555910A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- polymer
- apolar
- multilayer film
- injection molding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920000642 polymer Polymers 0.000 title claims abstract description 58
- 238000001746 injection moulding Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims description 22
- 239000011888 foil Substances 0.000 title abstract 2
- -1 lyamide Copo- Polymers 0.000 claims description 31
- 238000000465 moulding Methods 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 17
- 229920001155 polypropylene Polymers 0.000 claims description 16
- 239000004743 Polypropylene Substances 0.000 claims description 15
- 239000004417 polycarbonate Substances 0.000 claims description 11
- 239000004952 Polyamide Substances 0.000 claims description 10
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 10
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 10
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 10
- 229920002647 polyamide Polymers 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 9
- 229920000573 polyethylene Polymers 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 229920000515 polycarbonate Polymers 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 229920001577 copolymer Polymers 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 229920000034 Plastomer Polymers 0.000 claims description 5
- 239000005060 rubber Substances 0.000 claims description 5
- 229920001634 Copolyester Polymers 0.000 claims description 4
- 150000001252 acrylic acid derivatives Chemical class 0.000 claims description 4
- 150000001336 alkenes Chemical class 0.000 claims description 4
- 229920000554 ionomer Polymers 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 229920006132 styrene block copolymer Polymers 0.000 claims description 4
- 229920002554 vinyl polymer Polymers 0.000 claims description 4
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 3
- BFMKFCLXZSUVPI-UHFFFAOYSA-N ethyl but-3-enoate Chemical compound CCOC(=O)CC=C BFMKFCLXZSUVPI-UHFFFAOYSA-N 0.000 claims description 3
- 229920006324 polyoxymethylene Polymers 0.000 claims description 3
- 239000012943 hotmelt Substances 0.000 claims 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims 1
- 239000004721 Polyphenylene oxide Substances 0.000 claims 1
- 239000004793 Polystyrene Substances 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims 1
- 229920000570 polyether Polymers 0.000 claims 1
- 239000004926 polymethyl methacrylate Substances 0.000 claims 1
- 229920002223 polystyrene Polymers 0.000 claims 1
- 239000010410 layer Substances 0.000 description 102
- 239000000945 filler Substances 0.000 description 4
- 229920006113 non-polar polymer Polymers 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 239000006057 Non-nutritive feed additive Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000002318 adhesion promoter Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 208000028659 discharge Diseases 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 241000282941 Rangifer tarandus Species 0.000 description 1
- 235000019892 Stellar Nutrition 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 230000009089 cytolysis Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000003682 fluorination reaction Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229920001911 maleic anhydride grafted polypropylene Polymers 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920006112 polar polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1657—Making multilayered or multicoloured articles using means for adhering or bonding the layers or parts to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
- B29C45/14811—Multilayered articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
- B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2715/00—Condition, form or state of preformed parts, e.g. inserts
- B29K2715/006—Glues or adhesives, e.g. hot melts or thermofusible adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/20—Inorganic coating
- B32B2255/205—Metallic coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2274/00—Thermoplastic elastomer material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/73—Hydrophobic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/732—Dimensional properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/732—Dimensional properties
- B32B2307/734—Dimensional stability
Definitions
- the invention relates to an injection molding method for modifying a surface of a shaped body made of apolar polymer, a multilayer film suitable for this purpose and a polymer molding with a modified surface.
- Polypropylene and reinforced polypropylene are inexpensive and frequently used plastics for injection molded parts. Due to the non-polar properties of the polypropylene, further processing or refinement of the injection-molded parts is in most cases not possible without pretreatment. Especially when gluing and painting a pretreatment is necessary, otherwise the adhesives and paints remain insufficiently adhere to the surface.
- the surface can be modified by electrical discharges, such as corona or plasma discharges.
- electrical discharges such as corona or plasma discharges.
- DE 3340381 describes how the surface of Po ⁇ lypropylen may be modified by a corona discharge treatment.
- Another option is to activate the surface with ag ⁇ sive media.
- ag ⁇ sive media include acid etching, ozone lysis, fluorination or swelling with solvents.
- CA 876666, US 5302418 or US 5200274 describe various treatments.
- the surface may also be modified by application of dispersions, polymers and primers as beispielswei ⁇ se in DE 10250067, EP 1190008, DE 10239762 or EP 1037717 described.
- An object of the present invention is now to obviate the disadvantages of the known, and in particular to provide a spray ⁇ casting method by which the surface of a polymeric molded part can be changed from a non-polar polymer with as few process steps.
- the object is achieved by a method according to claim 1.
- a multilayer film with at least one first apolar layer and a second one is used
- Layer with at least one of the first layer differ ⁇ union surface property injected behind.
- the insert molding of films in itself is a known technology, in the first inserted a slide in the cavity of an injection molding tool ⁇ or clamped onto the injection mold. The film is pressed into the cavity and is entspre ⁇ accordingly the shape of the cavity is deformed. Subsequently, a Po ⁇ lymer is injected into the cavity, wherein the polyvinyl against the lymer facing side of the film with the polymer. As ⁇ through molded parts can be obtained, which are coated with a film Ü. Today, especially decorative films are back-injected, such as in the "Inmold injection" (IMD) technique.
- IMD Inmold injection
- a multilayer film is inserted with at least one apolar layer and at least a second layer with at least one other surface properties than the first layer in such a manner in the cavity of an injection molding ⁇ zeugs that the first non-polar layer is facing the interior of the cavity while the second layer comes to lie on the In ⁇ nenwand the cavity.
- the apolar polymer is then injected into the interior of the mold.
- the injected Po ⁇ lymer and the first non-polar layer of the multilayer film ste ⁇ hen in the mold in contact and combined in the sequence.
- the second layer of the multilayer film has at least one surface property different from the first apolar layer.
- the second layer has a different texture or color than the first apolar layer.
- the second layer preferably has a surface tension that is different from the first apolar layer.
- the second layer on polar own ⁇ properties.
- apolar is understood as meaning a material and / or a surface which has a surface tension of less than 35 mN / m.
- a material and / or a surface is meant having a top ⁇ surface tension of more than 37mN / m.
- the surface tension can be determined with commercially available test inks. Various test series are defined according to DIN 53364. Egg ⁇ ne other way to determine the surface tension loading is in measuring the so-called contact or wetting angle. The angle between the surface and a drop of water is measured. The better the wettability of the surface the more klei ⁇ ner of the angle. The measurement of the angle takes place example ⁇ example by a goniometer.
- the second layer is chosen such that it is suitable as an adhesive.
- the second layer may be composed so that it can be activated by heat or by a solvent. This has the advantage that a molded part produced by the injection molding method according to the invention can be glued directly or decorative and other elements, such as hooks, can be attached.
- the composition may also be selected so that the second layer may be physically activated at ⁇ example by ultrasonic or high frequency. Next alterna ⁇ tive the second layer can also be designed so that it can be activated by heat input, such as by infra red radiation ⁇ .
- the second layer of the multilayer film comprises or consists ⁇ be vorzugt thereof from a polar polymer selected from the group of polyamides, copolyamides, polyesters, copolyesters, polyurethanes, Polyetherblo- ckamide, acrylates or polycarbonates, or mixtures thereof.
- ABS acrylonitrile-butadiene-styrene copolymer
- ABS / PC waste mixture with polycarbonate
- PA polyamide
- TPU Polyu ⁇ rethane
- ABS and ABS / PC are here especially before ⁇ geous for subsequent electroplating and TPU is a gu ⁇ te affinity for paints and coatings.
- the polypropylene can also contain fillers, in particular glass fibers ⁇ , chalk or talc.
- apolar polymer may also be other plastics which are difficult to process, for example polyethylene, polyoxymethylene, thermoplastic elastomers or ethylvinyl acetate or copolymers and mixtures thereof.
- the first non-polar layer of the multilayer film comprises or be ⁇ is assumed a non-polar polymer, in particular polypropylene, modified polypropylene, polyethylene, modified polyethylene, polyoxymethylene, ethyl vinyl acetate, styrene block copolymers, ionomers, olefins, rubbers or plastomers, and copolymers and mixtures thereof.
- the polymers of the first and the second layer can further in the film industry, conventional processing aids and are admixed to set ⁇ substances, such as fillers o- the dyes.
- the multilayer film may have at least one further layer between the first apolar layer and the second layer.
- This at least one further layer can serve as a primer or barrier layer between the first and the second layer.
- this at least one additional layer may modify the properties of the multilayer film additionally ⁇ , such as the Reissfestig ⁇ ness, dimensional stability, hardness or grip color.
- the inventive injection molding process for producing a polymer molding of an apolar polymer has the particular advantage that the molding without further pretreatment the surface can be glued to another substrate.
- the surface can be easily improve optical and mechanical ⁇ cally, as provided for example by painting, powder coating, plating, electroplating, as well as with functional protective layers.
- the polymer moldings which are produced with the inventive molding process ⁇ also a very homogeneous surface have.
- even hidden areas that can not or only badly be treated by the conventional modification methods can be provided with the desired properties.
- Another object of the present invention is to provide a Fo ⁇ lie, which is suitable for imparting the surface of a molding of a non-polar polymer polar properties. This object is achieved with a multilayer film according to claim 9.
- the multilayer film according to the invention consists of at least a first apolar layer and a second polar layer, the apolar layer having a surface tension of less than 35 mN / m and the polar layer having a surface tension of more than 37 mN / m.
- the difference between the surface tension of the apolar and the polar is particularly preferred
- the polymer composition of the second layer is selected so that the second layer is suitable as an adhesive.
- the inventive multilayer film made possible by the apo ⁇ lare layer a good connection to a molding of an apolar polymer, while the second layer of the surface of the molded good adhesion properties for adhesives, paints and similar can lend.
- This makes it possible to equip a molding of an apolar polymer by a simple process, preferably by injection molding, with a surface which can be reliably glued or painted without additional treatment.
- the polymer composition of the second layer is selected so that the second layer is suitable as an adhesive.
- the second layer may be such amount together ⁇ is that they can be activated by heat or by a solvent.
- the composition may also be chosen so that the second layer can be physically activated, for example by ultrasound or radio frequency.
- the second layer can also be designed so that it can be activated by heat input, such as by infrared radiation.
- the multilayer film according to the invention can easily be produced, for example, by an extrusion process. Such processes are known to the person skilled in the art and include, inter alia, bubble extrusion and flat film extrusion in the coex and cascade processes.
- the inventive multilayer film can also be prepared by lamination of single and multi-layer films or by melt application on monolayer, multilayer or non ⁇ plastic films and by spread coating or Pulverstreuauf ⁇ contract. By varying the polymers used to make the second layer, it is possible to easily produce a variety of films having different surface properties.
- the first layer comprises or consists of an apolar polymer , preferably polypropylene, modified polypropylene, polyethylene, modified polyethylene, polyoxymethylene, ethylvinyl acetate, styrene block copolymers, ionomers, olefins, rubbers or plastomers and copolymers thereof.
- an apolar polymer preferably polypropylene, modified polypropylene, polyethylene, modified polyethylene, polyoxymethylene, ethylvinyl acetate, styrene block copolymers, ionomers, olefins, rubbers or plastomers and copolymers thereof.
- Preferably comprises or consists second layer of a po ⁇ stellar polymer, in particular from the group of polyamides, Copo- lyamide, polyesters, copolyesters, polyurethanes, Polyetherblocka- mide, acrylates or polycarbonates.
- the second layer comprises or consists of acrylonitrile-butadiene-styrene copolymer (ABS) and its blend with polycarbonate (ABS / PC), polyamide (PA) or polyurethane (TPU).
- the polymers of the first and the second layer can further in the film industry, conventional processing aids and are admixed to set ⁇ substances, such as fillers o- the dyes.
- the multilayer film may have at least one further layer between the first apolar layer and the second layer.
- This at least one layer can serve as a primer or barrier layer between the first and the second layer.
- this at least one further layer can alter the properties of the multilayer film zusappelli ⁇ che, such as tensile strength, Dimensi ⁇ onsstabiltician, handle hardness or color.
- the film consists of a first apolar one
- the film consists of a first apolar layer, a primer layer, a layer of an elastomer, a second adhesion promoter layer and a second polar layer.
- the inventive multi-layer film has (especially on ⁇ due to the production by means of coextrusion) also has the advantageous property that the individual layers adhere very well to ⁇ each other so that they can be separated only with destruction of the film.
- the use of a multilayer film according to the invention in an injection molding process for producing a polymer molding is particularly advantageous.
- the multilayer film is easy to produce.
- the adhesion properties can be influenced by varying the polymers used for the first non-polar layer for molding the one hand and on the other hand by varying the Po ⁇ mers of the second layer, the surface properties of the final molded article.
- Back-molding of films is a well-known process, so that a variety of necessary equipment is available on the market.
- a further object of the present invention is to provide a poly ⁇ merformteil from a non-polar polymer modified surface. This object is achieved with a polymer molding according to claim 14.
- a polymer molding which is produced by the inventive procedural ⁇ reindeer, has a surface with the processingmannverar ⁇ advantageous properties.
- Fig. 1 An embodiment of an inventive multilayer film in section
- Fig. 2 An embodiment of a novel polymer molding in section
- Fig. 3 An embodiment of the inventive injection molding process in section
- FIG. 1 shows, by way of example, an embodiment of a multilayer film 1 according to the invention in section.
- the multilayer film 1 consists of a first apolar
- the second layer 3 has at least one different surface property of the first layer 2.
- at least one further layer may be present between the first layer 2 and the second layer 3.
- the thickness of the multilayer sheet- ⁇ 1 as well as the individual layers 2,3 may vary depending on the application.
- the multilayer film 1 may be present which forms in various ⁇ , for example as a single sheet, as a roll or as a blank having a defined outline.
- the multilayer film may, for example, have a plurality of intermediate layers between the apolar layer 2 and the polar layer 3.
- the Mehr fürfo ⁇ lie 1 may consist of an apolar layer 2 made of polyethylene, an adhesive Mediator layer of ethylene vinyl acetate, an elastomeric layer of ethylene-vinyl rubber, another adhesive layer of ethylene vinyl acetate and a second, polar layer 3 consist of a polyamide.
- FIG. 2 shows an embodiment of a polymer molding 5 according to the invention.
- the polymer molding comprises a multi-layer film 1 back-injected by an apolar polymer 4.
- the apolar first layer 2 of the multilayer film 1 is facing the polymer 4, while the second layer 3 is facing the polymer
- a polymer molding 5 can also be produced by injection molding a multilayer film 1 between the first
- the polymer molding 5 may have various shapes and contours.
- the polymer molding 5 may be in the form of a dashboard for a motor vehicle.
- FIG. 3 shows an embodiment of the invention
- a polymer 4 can then be injected into the cavity 9.
- the condition after the entry Spraying of the polymer 4 shows Figure 3c. Since the first apolar layer 2 and the apolar polymer 4 show similar or identical surface properties, a strong bond is formed between the multilayer film 1 and the polymer 4. Thanks to this strong connection, the multilayer film 1 can no longer be detached from the polymer 4 without the polymer molding 5 being destroyed.
- the inventive method allows a permanent modification of the surface of a Po ⁇ lymerform stresses of apolar polymer.
- a multilayer film 1 consisting of a first, apolar layer 2 of maleic anhydride-grafted polypropylene (30 g / m 2 ) and a second, polar layer 3 of a copolyamide (10 g / m 2 ) was back-injected by polypropylene to a shaped body.
- a multilayer film 1 consisting of a first apolar layer 2 of a plastomer (10 g / m 2 ), an adhesion promoter layer of MAH-grafted polyethylene (5 g / m 2 ) and a second, polar layer 3 of polyamide (5 g / m 2 ) was back-injected by Polypro ⁇ pylene to form a molding.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11711939.6A EP2555910B1 (de) | 2010-04-06 | 2011-04-05 | Verfahren zum direkten Verkleben eines apolaren Polymerformkörpers mit einem weiteren Substrat und Verwendung eines apolaren Polymerformkörpers |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10159085A EP2374593A1 (de) | 2010-04-06 | 2010-04-06 | Spritzgussverfahren zur Modifizierung einer Oberfläche eines apolaren Polymerformkörpers sowie für dieses Verfahren geeignete Mehrschichtfolie |
PCT/EP2011/055268 WO2011124569A1 (de) | 2010-04-06 | 2011-04-05 | Spritzgussverfahren zur modifizierung einer oberfläche eines apolaren polymerformkörpers sowie für dieses verfahren geeignete mehrschichtfolie |
EP11711939.6A EP2555910B1 (de) | 2010-04-06 | 2011-04-05 | Verfahren zum direkten Verkleben eines apolaren Polymerformkörpers mit einem weiteren Substrat und Verwendung eines apolaren Polymerformkörpers |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2555910A1 true EP2555910A1 (de) | 2013-02-13 |
EP2555910B1 EP2555910B1 (de) | 2018-11-28 |
Family
ID=42668214
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10159085A Withdrawn EP2374593A1 (de) | 2010-04-06 | 2010-04-06 | Spritzgussverfahren zur Modifizierung einer Oberfläche eines apolaren Polymerformkörpers sowie für dieses Verfahren geeignete Mehrschichtfolie |
EP11711939.6A Active EP2555910B1 (de) | 2010-04-06 | 2011-04-05 | Verfahren zum direkten Verkleben eines apolaren Polymerformkörpers mit einem weiteren Substrat und Verwendung eines apolaren Polymerformkörpers |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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EP10159085A Withdrawn EP2374593A1 (de) | 2010-04-06 | 2010-04-06 | Spritzgussverfahren zur Modifizierung einer Oberfläche eines apolaren Polymerformkörpers sowie für dieses Verfahren geeignete Mehrschichtfolie |
Country Status (6)
Country | Link |
---|---|
US (1) | US9527232B2 (de) |
EP (2) | EP2374593A1 (de) |
JP (1) | JP5788491B2 (de) |
CN (2) | CN102834237A (de) |
ES (1) | ES2713080T3 (de) |
WO (1) | WO2011124569A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014112876B4 (de) * | 2014-09-08 | 2023-01-05 | Lisa Dräxlmaier GmbH | Oberflächenmodifizierbarer Spritzgussformkörper und Verfahren zu dessen Herstellung |
US10293550B2 (en) | 2015-10-13 | 2019-05-21 | Milliken & Company | Process and machine for reinforcing a thermoplastic pipe |
WO2017092738A1 (de) * | 2015-12-02 | 2017-06-08 | Schaeffler Technologies AG & Co. KG | Abriebfester und hydrolysebeständiger encoder, lagereinheit mit encoder und verfahren zur herstellung des encoders |
CN108290402B (zh) * | 2015-12-25 | 2021-03-05 | 东丽株式会社 | 复合成型体及其制造方法 |
US11034819B2 (en) | 2016-02-24 | 2021-06-15 | Exxonmobil Chemical Patents Inc. | Self-assembled propylene-based compositions and methods of production thereof |
EP3542989A1 (de) | 2018-03-20 | 2019-09-25 | Motherson Innovations Company Limited | Kunststoffbauteil und verfahren zum herstellen des kunststoffbauteils |
DE102018133678A1 (de) * | 2018-12-28 | 2020-07-02 | Evonik Operations Gmbh | Einbringung einer Datenseite in ein Wertdokument |
DE102021108341A1 (de) | 2021-04-01 | 2022-10-06 | Bayerische Motoren Werke Aktiengesellschaft | Fahrzeugbauteil in Fasersichtoptik und Verfahren zur Herstellung |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
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CA876666A (en) | 1971-07-27 | R. Norgan Michael | Surface treating polypropylene | |
JPS5772816A (en) * | 1980-10-27 | 1982-05-07 | Yoshida Kogyo Kk <Ykk> | Method for adhering synthetic resin molded article |
JPS5984341A (ja) | 1982-11-08 | 1984-05-16 | Tdk Corp | 磁気記録媒体 |
DE4136145A1 (de) * | 1991-11-02 | 1993-05-06 | Hilti Ag, Schaan, Li | Formteile mit vorbereiteter klebeflaeche |
US5302418A (en) | 1992-04-17 | 1994-04-12 | Hoechst Celanese Corp. | Process for surface-modifying polypropylene or polyethylene |
US5200274A (en) | 1992-04-17 | 1993-04-06 | Hoechst Celanese Corp. | Process for surface-modifying polypropylene or polyethylene |
EP0693023A1 (de) * | 1994-02-09 | 1996-01-24 | Tetra Laval Holdings & Finance SA | Verklebbarer formteil aus kunststoff und verfahren zur herstellung dieses formteils |
JPH1052893A (ja) * | 1996-06-06 | 1998-02-24 | Mitsubishi Chem Corp | プラスチック製共押出多層積層シート及びそれを使用した成形体の製造方法 |
JP3419240B2 (ja) * | 1997-03-21 | 2003-06-23 | 豊田合成株式会社 | エアバッグ用パッドとその製造方法 |
DE19753848A1 (de) | 1997-12-04 | 1999-06-10 | Roche Diagnostics Gmbh | Modifikation von Oberflächen zur Steigerung der Oberflächenspannung |
JP2000052374A (ja) * | 1998-08-06 | 2000-02-22 | Kansai Paint Co Ltd | プラスチック成型用化粧フィルム、その製造方法及びそのフィルムを使用して得られる射出成型物品 |
JP3511920B2 (ja) * | 1998-11-27 | 2004-03-29 | 豊田合成株式会社 | 装飾テープ貼着モール |
DE19923780A1 (de) | 1999-05-22 | 2000-11-23 | Beiersdorf Ag | Unverstreckte Oberflächenschutzfolie aus Polypropylenblockcopolymer |
DE10239762A1 (de) | 2002-08-26 | 2004-03-11 | Syntec Gesellschaft Für Chemie Und Technologie Der Informationsaufzeichnung Mbh | Hydrophile Schutzschicht |
DE10250067B4 (de) | 2002-10-25 | 2007-08-16 | B. Laufenberg Gmbh | Verfahren zur Beschichtung einer Folie |
JP4451200B2 (ja) * | 2004-04-26 | 2010-04-14 | 康治 友田 | ポリアミド樹脂一体成形物およびその製造方法ならびにポリアミド樹脂の接合助剤 |
US20060019088A1 (en) * | 2004-07-20 | 2006-01-26 | Xiaojia Wang | Adhesive layer composition for in-mold decoration |
US20060177634A1 (en) * | 2004-09-01 | 2006-08-10 | John Lazar | Activator means for pre-applied adhesives |
-
2010
- 2010-04-06 EP EP10159085A patent/EP2374593A1/de not_active Withdrawn
-
2011
- 2011-04-05 EP EP11711939.6A patent/EP2555910B1/de active Active
- 2011-04-05 JP JP2013503085A patent/JP5788491B2/ja active Active
- 2011-04-05 CN CN201180017003.0A patent/CN102834237A/zh active Pending
- 2011-04-05 WO PCT/EP2011/055268 patent/WO2011124569A1/de active Application Filing
- 2011-04-05 CN CN201610574318.XA patent/CN106217749B/zh active Active
- 2011-04-05 ES ES11711939T patent/ES2713080T3/es active Active
- 2011-04-05 US US13/638,980 patent/US9527232B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2374593A1 (de) | 2011-10-12 |
CN102834237A (zh) | 2012-12-19 |
CN106217749A (zh) | 2016-12-14 |
ES2713080T3 (es) | 2019-05-17 |
US9527232B2 (en) | 2016-12-27 |
JP2013523495A (ja) | 2013-06-17 |
US20130221569A1 (en) | 2013-08-29 |
CN106217749B (zh) | 2019-10-22 |
WO2011124569A1 (de) | 2011-10-13 |
EP2555910B1 (de) | 2018-11-28 |
JP5788491B2 (ja) | 2015-09-30 |
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